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计算机制全息图是制作全息图的一种新技术。它是建立在计算机科学与光学结合的基础上。该全息图不仅可全面地记录光波的振幅与位相，而且在低噪声、高重复性和可记录世间不存在物体的图象等方面都优于光学全息。由于其独特的优点和应用价值，引起了许多光学工作者的极大兴趣。 计算全息是在光信息处理技术的要求下产生，同时也由于计算机技术和快速付里叶 (FFT)算法的应用得以迅速发展。 本文从计算全息的理论基础-空间脉冲调制理论出发，应用迂回位相法进行编码制作。分别从抽样、编程计算、编码、绘图与再现等过程说明其设计制作过程。使全息图的制作采用数字计算机来综合，它在空间滤波器制作、干涉量度术、激光光束扫描和图象三维显示等方面有着重要应用。在当今包装防伪标识制作中较光学全息更具有独特优点，对开拓其应用范围有重要参考价值。
Computer-generated holograms are a new technique for making holograms. It is based on the combination of computer science and optics. The hologram not only can fully record the amplitude and phase of light waves, but also surpasses the optical holography in the fields of low noise, high repeatability and images without objects in the recordable world. Due to its unique advantages and application value, it has aroused great interest of many optical workers. Computational holography is generated at the request of optical information processing technology and also rapidly developed due to the application of computer technology and fast Fourier transform (FFT) algorithm. In this paper, based on the theoretical basis of holographic calculation - space pulse modulation theory, we use the roundabout phase method to make the code. From the sampling, programming calculation, coding, drawing and reproduction process illustrates its design and production process. The hologram is produced by digital computer. It has important applications in the fields of spatial filter making, interferometry, laser beam scanning and 3D image display. In today’s packaging anti-counterfeit labels produced more holographic optical holographic unique advantages, to explore its scope of application has important reference value.